Toilet flush valve



July; 15 1924. A 1`,501,'4'33 F. T. BoGARD TOILET FLUSH VALVE -med Jan ze. 1923 2 sheets-shea 1 v v JNVENToR. v Frank T..B0 and- BY@ m ATTORNEY July 15 1924.--

-Filed Jan. 29. 2 Sheets-Sheet 2 Q4 N 2,2m n

i. Naf/,

JNVENToR.

TToRNEy Patented July 15, 1924.

FRANK 'I'. BOGRID, OF OAKLAND, CALIFORNIA, ASSIGNOR TO RODNEY H.

MARCHANT,

DF OAKLAND, CALIFORNIA.

TOILET FLUSH VALVE.

Application filed January 29, 1923.

To all whom t may concern.'

Be it known that I, FRANK T. BOGARD, a citizen of the Unit-ed States, residing at Oakland, county of Alameda, State of California, have invented certain new and useful Improvements in Toilet- Flush Valves; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in flush valves, particularly for toilet lpurposes, and especially represents an improvementl over the type of valve shown in the patent to Charles I-I. Gunn, No. 1,407,998, February 28th, 1922', which valve is intended to be usedin connection with a pair of'tanks, or a divided tank, connected to a supply of water under pressure, and arranged to allow either tank to be filling while the other is being emptied for flushing.

The principal object of the present invention is to construct a valve of the above named type so that While the principle of operation and the results obtained are the same as before, a tendency to leakage, which was evidenced during experiments with the original valve, and which wasv due to the arrangement of the various ports, has been largely if not entirely eliminated.

One great trouble brought aboutby the said previous arrangement of the ports was the abrasive action of the grit present in.

the usual water supply, and which cannot be eliminated. With my improved portarrangcment however7 I prevent the water at the intake ports, which is under pressure, from' coming into contact with any great area of surface of the turnable valve plug, or its seat,vprior to the entrance of the water into the tank, and when it is withdrawn therefrom, the grit', etc., has largely settled, and the abrasive action of the remainder 'largely eliminated owing to the freedom with which .the water may escape;

Trouble was also previously experienced with the plug tending to Stick in its seat, or else to be so loose a lit thatleakage was had, and another object therefore is to so mount the plug that while it may 'be'ajustel toV .have a snug `t in of my inventionV Serial No. 615,719.

its seat, it cannot back out, tendency to stick is absent.

A. further object of the invention is to produce a simple and inexpensive device and yet'one which will be exceedingly eective for the purposes for which it is designed.

These objects I accomplish by means of suchstructure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims:

In the drawings similar characters of reference indicate corresponding parts in the several views:

Fig. l is a side view of my improved valve, showing lthe same mounted in connection with its tanks and a toilet.

' Fig. 2 is a sectional plan of the valve.

Fig. 3 is a cross section takenV on line 3`3 of Fig. 2.

Fig. a is a cross section taken on line of Fig. 2.

Referring now more particularly to the characters ot reference on the drawings, the numeral l denotes a cylindrical and taperbored casing having on its under side an outlet 2 adapted for connection to the Hushpipe 8 oit a standard toilet 4.

Projecting from opposite sides of the casing and in the same transverse plane as the outlet 2 are ports or passageways 5 and 6, the port 5 being adapted tor connection to a. pipe leading to a pressure tank 8 while the port 6 is likewise adapted to be connected to a similar but independent tank not shown).

A bypass port 9 leads from the port 5 to communicate with the casing-bore beyond the said port 5, while a` bypass 10 similarly leads from theport 6 to the casing bore beyond the latter port and in transverse alinement 4kwith the termination of port 9.

On top of the casing in transverse alinement with the bypass ports 9 and l0 and located centrally therebetween is an intake port 1l adapted to be connected to a pipe 12 leading to a supply of water under pressure.

Turnably fitted in the casing is a taper plug 13 having on its small end a stem 14 which projects through a stuing-box member l5 on the adjacent end of the casing.

Removably secured on the stem outwardly of the member 15 is a handle 16 by means of which the plug may be turned, said handle having a Sleeve?? .which project/S ever and and also any conceals the stuffing box, the sleeve having an interior lug .i8 movable between lugs 19 fixed with respect to the casing, whereby the extent of movement of the lever and plug is definitely limited.

The casing projects beyondv the plug at the other end and is tapped to receivea screw cap Q0 in which is adjustably mounted a screw 2l the inner end of which is pointed or cone shaped to seat in a socket provided in the adjacent end ofthe plug, the screw of course being fin aXial alinement with the plug. l

ly this means the plug may be adjusted to seat to a nicety in the casing, and any wear may be taken' up as it occurs, without any danger of the plug then wedging in its seat, or of its backing away from the same, since when once set, it is definitely held in a fixed position. At the same time, nothing` has been provided to interfere with the ready turning ofthe plug as required.

The plug i3 has a flushing passage 22 adapted to register with the port 5 and with the outlet 2f. Another fiushing passage 23 in the plug, in. transverse alinement with the passage 22 and spacedv therefrom throughout, is adapted to register with the port G and with the outlet 2, the adjacent terminations of said ports and passages being preferably rectangular in cross section and of the same area.

The positioning of the passages relative to each other and to the ports 5 and 6 is such that when either passage registers with its casing port7 the other passage isblinded at both ends by the casing wall, its casing port being then centrally between the ends of said passage.

Located in the plug in transverse alinement with the by-pass ports 9 and l() and intake port 11 are other spaced intake passages 24 and 25 adapted toregister with the ports 9 and l0 respectively and alternately with the common port ll. These passages are so arrangedrelative to the passages 22 and 23 that when the latter is positioned to open communication between the port l0 and outlet 2, the passage 24' is then positioned to open communication betweenI the ports 9 and ll. and vice versa, the result of course being that as water is flowing into one of the tanks from the intake pipe 12, water from the other tank is discharging into the bowl t.

By means of the above described; construction and arrangement of parts, the water entering the plug from the supply pipe will pass directly to either tank without coming inA contact with the bored surfacei of the plugr or casing except over that portion ofthe plug between the ends of the fiushingpassage on that side, whichV covers the corresponding port 9 or l0, and which is not-then in use,

However since the water is flowing away from this exposed surface and not toward, no abrasion of the lat-ter due to any grit in the water will be evident.

it will 4also be noted that when either passage 9 or 10 is positioned to function, no bearing surface against which the rush of water can impinge and deposit foreign matter is exposed.

Further, there is at all times, a seal-surface, of the plug and casing, all around the same and between the intake and flushing passages and ports, and separating the incoming and outgoing flow of water, and never in cont-act with any water, this feature materially aiding in the prevention of\ abrasion and the consequent leakagebetween orts.`

Bleed holes 26 are drilled from both ends of the plug to the passages 22 and. 28, these preventing locking of the plug in the casing in the event of any pressure ofwater getting behind the end of the plug.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in; de: tail the present an dpreferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful and desire tosecure by Letters Patent is:

l. A valve comprising a. casing, a pair of transversely opposed ports therein, passageways leading outwardly from saidA ports, an outlet from the casing, by passes leading from the passages to the interior of the casing beyond the ports, an intake leading; to the casing, a plug turnably mounted in the casing, and port means inthe plug for alternately allowing water'to flow from one passage and' port to the outlet while allowing water to flow from the intake into the bypass leading to the other passageway.

2. A valve comprising a casing, a pair of transversely opposedports therein, passageways lead-ing outwardly from saidf ports, an outlet from the casing, by passes leading from the passages tothe interior of the casing beyond the ports, an intake leading to the casing and a plug turnably mounted in the casing and provided with port means allowingcommunication between either one of the passageways and itsl port and thev outlet, and also between the intake and the bypass leading to the other passageway' at the sametime.

3. A valve comprising acasing, a pair' of transversely opposed ports therein, passage- Ways leading outwardlyV f romsaid` `r7 0rts an outlet from the casing intermediate said ports, by passes leading from the passages to the interior of the casing beyond the ports, an intake leading tothe casing between the bypass connections therewith, a plug turnably mounted in the casing, independent passages through the plug for allowing conimunication between the outlet and the ports alternately, and independent passages through said plug for allowing communication between the intake and the bypasses alternately and in reverse order with respect to the communication of said ports with the outlet.

4t. A valve comprising a casing, a pair of opposed ports positioned in a common transverse plane, passages leading outwardly from the ports, an outlet from the casing intermediate the ports and in the same transverse plane, bypasses leading from the passages to the casing beyond the ports and terminating in said casing in spaced relation and in a common transverse plane, an intake to said casing in the same plane and intermediate said bypass terminations, a plug turnably mounted in the casing, spaced passages through the plug in transverse alinement with the ports and adapted to register alternately with said ports and with the outlet, and independent passages through the plug in transverse alinement with the by pass terminations and with the intake, arranged to register alternately with said by passes and the intake in opposite order to the registering of the first named plug passages with the ports and outlet.

In testimony whereof I attix my signature.

FRANK T. BoGARD. 

